body {
  min-width: 320px;
  max-width: 750px;
  width: 10rem;
  line-height: 1.5;
  margin: 0 auto;
  font-family: Arial, Helvetica;
  background-color: #f9f9f9;
}
ul {
  margin: 0;
  padding: 0;
}
ul li {
  list-style: none;
}
@media screen and (min-width: 750px) {
  html {
    font-size: 75px !important;
  }
}
@media screen and (max-width: 320px) {
  html {
    font-size: 32px !important;
  }
}
.big_box {
  width: 10rem;
}
.big_box .box_hand {
  position: relative;
  top: 0;
  height: 4.08rem;
  background: url(../images/logo.png) no-repeat;
  background-size: cover;
}
.big_box .box_hand .handed_top {
  width: 10rem;
  height: 0.533rem;
  display: flex;
  color: #fff;
  font-size: 0.325rem;
}
.big_box .box_hand .handed_top .top_left {
  flex: 33.33%;
  padding: 0 0.133rem;
  align-items: center;
}
.big_box .box_hand .handed_top .top_left i {
  display: inline-block;
  width: 0.16rem;
  height: 0.16rem;
  border-radius: 50%;
  border: 0.013rem solid #fff;
}
.big_box .box_hand .handed_top .top_left i:nth-child(-n + 3) {
  background: white;
}
.big_box .box_hand .handed_top .top_left span {
  margin-left: 0.133rem;
}
.big_box .box_hand .handed_top .top_left .iconfont {
  font-size: 0.313rem;
}
.big_box .box_hand .handed_top .top_center {
  flex: 33.33%;
  display: flex;
  justify-content: center;
  align-items: center;
}
.big_box .box_hand .handed_top .top_right {
  flex: 33.333%;
  display: flex;
  justify-content: flex-end;
  align-items: center;
}
.big_box .box_hand .handed_top .top_right .iconfont {
  font-size: 0.5rem;
  padding: 0 0.133rem 0 0.067rem;
}
.big_box .box_hand .handed_foot {
  height: 3.547rem;
}
.big_box .box_hand .handed_foot .user {
  position: absolute;
  top: 1.893rem;
  left: 0.8rem;
  width: 4.933rem;
  height: 1.333rem;
  display: flex;
  align-items: center;
}
.big_box .box_hand .handed_foot .user img {
  width: 1.333rem;
  height: 1.333rem;
}
.big_box .box_hand .handed_foot .user span {
  margin-left: 0.32rem;
  font-size: 0.48rem;
  color: #fff;
}
.big_box .box_banner {
  width: 10rem;
  margin-bottom: 0.267rem;
}
.big_box .box_banner ul {
  height: 2.72rem;
  background-color: #fff;
  display: flex;
  justify-content: space-around;
  align-items: center;
}
.big_box .box_banner ul li {
  text-align: center;
  font-size: 0.333rem;
  color: #717171;
}
.big_box .box_banner ul li div {
  width: 0.987rem;
  height: 0.987rem;
  margin-bottom: 0.18rem;
  margin-left: 0.133rem;
}
.big_box .box_banner ul li:nth-child(1) div {
  background: url(../images/youhui.png) no-repeat;
  background-size: cover;
}
.big_box .box_banner ul li:nth-child(2) div {
  background: url(../images/shoucang.png) no-repeat;
  background-size: cover;
}
.big_box .box_banner ul li:nth-child(3) div {
  background: url(../images/liulan.png) no-repeat;
  background-size: cover;
}
.big_box .box_banner ul li:nth-child(4) div {
  background: url(../images/tuijian.png) no-repeat;
  background-size: cover;
}
.big_box .box_exclusive {
  width: 10rem;
  height: 5.733rem;
  background-color: #fff;
  margin-bottom: 0.067rem;
  overflow: hidden;
}
.big_box .box_exclusive h2 {
  margin: 0.64rem 0 0.667rem 0.347rem;
  font-size: 0.4rem;
}
.big_box .box_exclusive ul {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-around;
  align-items: center;
  font-size: 0.32rem;
  color: #666;
}
.big_box .box_exclusive ul li {
  width: 2.5rem;
  height: 2.226667rem;
  text-align: center;
}
.big_box .box_exclusive ul li div {
  width: 0.8rem;
  height: 0.8rem;
  margin: 0 auto;
}
.big_box .box_exclusive ul li:nth-child(1) div {
  background: url(../images/zs1.png) no-repeat;
  background-size: cover;
}
.big_box .box_exclusive ul li:nth-child(2) div {
  background: url(../images/zs2.png) no-repeat;
  background-size: cover;
}
.big_box .box_exclusive ul li:nth-child(3) div {
  background: url(../images/zs3.png) no-repeat;
  background-size: cover;
}
.big_box .box_exclusive ul li:nth-child(4) div {
  background: url(../images/zs4.png) no-repeat;
  background-size: cover;
}
.big_box .box_exclusive ul li:nth-child(5) div {
  background: url(../images/zs5.png) no-repeat;
  background-size: cover;
}
.big_box .box_exclusive ul li:nth-child(6) div {
  background: url(../images/zs6.png) no-repeat;
  background-size: cover;
}
.big_box .box_exclusive ul li:nth-child(7) div {
  background: url(../images/zs7.png) no-repeat;
  background-size: cover;
}
.box_service {
  width: 10rem;
  height: 3.52rem;
  background-color: #fff;
  display: flex;
  justify-content: space-between;
  padding: 0.533rem 0.4rem;
  box-sizing: border-box;
}
.box_service div {
  width: 4.453rem;
  height: 2.507rem;
}
.box_service div img {
  width: 100%;
  height: 100%;
}
.box_nav {
  width: 10rem;
  height: 1.307rem;
  background-color: #f7f7f7;
  border-top: 1px solid #b2b2b2;
}
.box_nav ul {
  display: flex;
  justify-content: space-around;
  color: #999999;
  font-size: 0.267rem;
  align-items: center;
  text-align: center;
}
.box_nav ul li {
  width: 1.2rem;
  height: 1.2rem;
}
.box_nav ul li div {
  width: 0.667rem;
  height: 0.667rem;
  margin: 0.133rem auto;
}
.box_nav ul li:nth-child(1) div {
  background: url(../images/footer1.png) no-repeat;
  background-size: cover;
}
.box_nav ul li:nth-child(2) div {
  background: url(../images/footer2.png) no-repeat;
  background-size: cover;
}
.box_nav ul li:nth-child(3) div {
  background: url(../images/footer3.png) no-repeat;
  background-size: cover;
}
.box_nav ul li:nth-child(4) div {
  background: url(../images/footer4.png) no-repeat;
  background-size: cover;
}
